Ptyoiulinae
Guides
Ptyoiulus
Ptyoiulus is a genus of millipedes in the family Parajulidae, established by Cook in 1895. The genus contains approximately seven described species distributed in eastern North America. Species within this genus are cylindrical millipedes characterized by features typical of the Julida order. The genus is taxonomically placed in the subfamily Ptyoiulinae.